During mobile service tower rollback activities, spotlights at Space Launch Complex 17B create a mesh of shadows across the Delta II rocket set to carry NASA's twin GRAIL spacecraft.
During mobile service tower rollback activities, spotlights at Space Launch Complex 17B create a mesh of shadows across the Delta II rocket set to carry NASA’s twin GRAIL spacecraft.
Image credit: NASA/Kim Shiflett
Sept. 7, 2011
